201512434 has 16 divisors (see below), whose sum is σ = 310853376. Its totient is φ = 97902000.

The previous prime is 201512429. The next prime is 201512459. The reversal of 201512434 is 434215102.

It is a super-2 number, since 2×201512434² = 81214522113208712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76479 + ... + 79069.

It is an arithmetic number, because the mean of its divisors is an integer number (19428336).

Almost surely, 2^201512434 is an apocalyptic number.

201512434 is a deficient number, since it is larger than the sum of its proper divisors (109340942).

201512434 is a wasteful number, since it uses less digits than its factorization.

201512434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 201512434 is about 14195.5075287923. The cubic root of 201512434 is about 586.2739752547.

Adding to 201512434 its reverse (434215102), we get a palindrome (635727536).

The spelling of 201512434 in words is "two hundred one million, five hundred twelve thousand, four hundred thirty-four".